Abstract
The logistics of cruise ship construction are complex, with an extended period, many participants, and a stringent node control. The resulting occupational health and safety risks have more risks and uncertainties. If it is not identified and controlled, it will lead to low efficiency of logistics management in the construction stage, leading to chain breaking and going out of control. In response to this situation, this article proposes an improved intuitionistic fuzzy TOPSIS decision model to evaluate occupational health and safety risks in cruise ship construction. First, based on field research and interviews, risk sources and risk evaluation criteria are determined, and experts are given different weights based on the relative importance of decision-making experts. Then, to reduce the ambiguity and uncertainty of the risk source information, the intuitionistic fuzzy weighted arithmetic average operator is used to aggregate the judicial opinions of experts to obtain the intuitionistic fuzzy aggregate decision risk matrix. To improve the accuracy of risk assessment results, subjective weight and objective weight are comprehensively considered. The stepwise weight assessment ratio analysis (SWARA) method is used to determine the subjective weight of the evaluation criteria, and the normal distribution method is used to determine the objective weight of the evaluation criteria. According to the relative closeness coefficient of each risk source to the positive-ideal solution, the ranking of the risk sources is obtained. Finally, taking a cruise ship construction as an example, the risk sources of occupational health and safety are sorted, sensitivity analysis is carried out and compared with other methods, and the targeted risk control measures are put forward, which verifies the effectiveness and correctness of the improved intuitionistic fuzzy TOPSIS decision model.
Highlights
Occupational health and safety risks can be defined as a combination of the possibility of safety production accidents and health damage
Long period, and difficulty of cruise ship construction and the high occupational health and safety risk coefficient caused by it, an improved intuitionistic fuzzy TOPSIS decision model for cruise ship construction risk assessment is proposed to overcome the defects of the traditional TOPSIS decision model. e improved intuitionistic fuzzy TOPSIS decision model has the following advantages: (1) e intuitionistic fuzzy numbers are used to represent fuzziness and uncertainty, and objective weight is introduced. e intuitionistic fuzzy numbers can express the decision-maker’s preference for the membership degree, nonmembership degree, and hesitation
It can more comprehensively describe the fuzziness and uncertainty of occupational health and safety risk sources in cruise ship construction. e evaluation of risk sources is based on the intuitionistic fuzzy number to express preference degree, and the intuitionistic fuzzy weighted arithmetic average operator is used for aggregation
Summary
Occupational health and safety risks can be defined as a combination of the possibility of safety production accidents and health damage. E occupational health and safety risk assessment of cruise ship construction can be regarded as an uncertain fuzzy multicriteria decision-making problem. Because of the uncertainty and complex ambiguity of the cruise ship construction occupational health and safety risk assessment, this article discusses the cruise ship construction occupational health and safety risk assessment from the perspective of intuitionistic fuzzy sets, adding subjective and objective weights to the assessment criteria, and proposes an improved intuitionistic fuzzy TOPSIS decision model. (1) To fully consider the possibility of decision-makers’ hesitation, intuitionistic fuzzy numbers are used to characterize the great uncertainty and ambiguity of occupational health and safety risks in cruise ship construction. An improved intuitionistic fuzzy TOPSIS decision model was proposed and used in the occupational health and safety risk assessment of China’s first cruise ship construction.
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